baber/WOPTO huggingface dataset:
Patent GB-1026544-A (GB)
Title: Electrical limit switch
IPC: H01H21/28
Filed: 1962-09-11
Abstract: 1,026,544. Retractive switches. R. B. DENISON. Sept. 11, 1962 [Sept. 11, 1961], No. 34702/62. Heading H2B. The limit switch of Specification 952,495 has a modified latch member 57 and modified cooperating latching dogs 80, 81, to reduce the frictional force overcome at disengagement, the co-operating cam shoulders 63, 64 of latch member 57 and blocking legs 82, 83 of dogs 80, 81, being appropriately contoured (Fig. 7, not shown). The cam shoulders are also farther from the pivot axis of the latch member than in the prior Specification, to reduce the torque necessary to operate the switch. Reference has been directed by the Comptroller to Specification 952,495.
Patent GB-1193073-A (GB)
Title: Improvements in or relating to the Reduction of Tracing Distortion in Gramophone Records
Inventor: FOXCROFT CYRIL LINDOP
IPC: G11B3/00
Filed: 1966-08-03
Abstract: 1,193,073. Modulated groove sound recording. ELECTRIC & MUSICAL INDUSTRIES Ltd. 3 Aug., 1967 [3 Aug., 1966], No. 34763/66. Heading H4J. [Also in Division G4] A complementary distorter for predistorting a signal to be recorded on a gramophone record comprises a circuit for forming an error signal representing the error in the replayed signal if a disc record of said input signal were cut by means of a chisel shaped recording cutter and replayed with a spherical stylus of predetermined tip radius. The error signal is of form where r is the stylus tip radius, is the modulation velocity of the cutter and u is the instantaneous groove velocity. A signal to be recorded is first differentiated with respect to time and the differentiated signal is applied to an inverter circuit 1 (Fig. 1) the output of which is taken to a filter circuit 2 which superimposes the recording characteristic on to the signal. This is thereafter fed to a squaring circuit 3 and correspondingly to a differentiating circuit 4. The outputs from circuits 3 and 4 are multiplied together in a circuit 5. The outputs from circuits 3 and 5 are passed through potentiometer multipliers 6 and 7 which respectively multiply the outputs by r/2u<SP>2</SP> and r<SP>2</SP>/2u<SP>4</SP>. The potentiometer multipliers 6 and 7 are linked to the means for traversing the cutter across the record. Their outputs are added in an amplifier 8 and fed to a circuit 9 which imposes the replay characteristic on the sum signal and differentiates the resultant. The output of circuit 9 is added to the output of inverter 1 in a summation circuit 10. The output of circuit 10 is inverted and applied to a circuit which imposes the recording characteristic. An alternative circuit (Fig. 2, not shown) derives the error signal using various logarithmic amplifiers in conjunction with amplifiers having gain -2 and -1 together with other circuits such as differentiating circuits and potentiometer multipliers. In practice, two circuits are used, one for each groove wall whether a mono or stereo record is cut.
Patent GB-787338-A (GB)
Title: Method and apparatus for the remote checking of the state of a surface
IPC: G08C19/02
Filed: 1954-12-01
Abstract: 787,338. Television. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Dec. 1, 1954 [Dec. 4, 1953], No. 34819/54. Class 40 (3). The condition of a precision scale 4 is checked by means of a local-viewing television system in which the image of spot of light from a source 1 is formed on the scale and subjected to mutually perpendicular oscillatory deflections by electromagnetically controlled optical deflectors 8 and 12 operating respectively at a high and low frequency, e.g. 50 and 3 cycles per second, reflected light being received by a photoelectric cell 15 and applied to control the intensity of the beam of a cathode-ray display tube 16 scanned synchronously with the deflectors. Sinusoidal current to drive deflector 8 is derived via transformer 9 from the supply R, whilst sinusoidal, sawtooth or triangular current to drive deflector 12 is derived from a suitable circuit 13.
Patent GB-1096707-A (GB)
Title: Process for the purification of tertiary amines
Inventor: BATHELLIER ANDRE
IPC: B01J20/12
Filed: 1965-08-13
Abstract: Tertiary amines are purified by contacting a tertiary amine in the liquid phase or in solution with an activated natural earth and then separating the tertiary amine therefrom.  The activated natural earth is preferably one obtained by acid activation of bentonite, and may be used in admixture with an active carbon. The Specification relates particularly to the purification of trilaurylamine containing dilaurylamine and its laurate as principal impurities.
Patent GB-1171020-A (GB)
Title: A Process for Producing Alpha-Aminoacid and Apparatus used for the Production of Alpha-Aminoacid
IPC: C07C/
Filed: 1967-07-28
Abstract: 1,171,020. α-Amino acids. SUMITOMO CHEMICAL CO. Ltd. 28 July, 1967 [28 July, 1966], No. 34921/67. Heading C2C. A process for producing α-amino acids comprises hydrolysing a hydantoin compound in the presence of an alkali in an aqueous medium in an amount of at least 1À5 litres per mole of the hydantoin compound initially employed, while withdrawing from the hydrolysis reaction system, the gases generated during the hydrolysis reaction. Preferably the aqueous solution of the hydantoin compound is fed to the upper part of a plate column-type reaction zone or packed column-type reaction zone, the aqueous solution is maintained under pressure at an elevated temperature to hydrolyse the hydantoin compound, steam is formed in the lower parts of the reaction zone by heating or by injection and the said steam is fed from the lower part of the reaction zone to the upper parts of the reaction zone in which the hydrolysis substantially takes place, thereby stripping from the reaction liquid the gases generated during the hydrolysis reaction, the said gases being withdrawn from the system and the reaction product liquid after completion of the hydrolysis is withdrawn from the bottom part of the reaction zone. The production of methionine is described and the process is suitable for the production of glycine, alanine, valine, leucine, isoleucine, threonine, phenylalanine, tryptophan, glutamic acid and aspartic acid.
Patent GB-1079636-A (GB)
Title: Feed beam,in particular for mangles
IPC: D06F67/04
Filed: 1965-08-16
Abstract: 1,079,636. Feeding sheets. VERKSTADS CALOR A.B. Aug. 16, 1965 [Sept. 11, 1964], No. 35042/65. Heading B6B. [Also in Division D1]  A feed beam for feeding sheets to a mangle comprises a clamp 14, 15 which grips the corner of a sheet and is moved by a piston 7 transversely to the direction of feed, the front edge of the sheet being held by the suction effect of the holes 4 which connect with an evacuated chamber 6 prior to feeding the front edge of the sheet to the mangle. The part 14 of the clamp is rotatable about a shaft 16 to grip and release the corner.
Patent GB-155261-A (GB)
Title: Improvements in exhaust silencers for internal combustion engines
IPC: F01N1/12
Filed: 1920-12-13
Abstract: 155,261. Ernst, J., Ernst, W., and Ernst, J. March 28, 1917, [Convention date]. Exhaust-silencers. - In a silencer for internal-combustion engines, a casing 2a of double-cone shape encloses a helix 3<a> increasing in pitch from the middle towards both ends and having an axial bore 13 which increases towards the inlet end 10. The Specification as open to inspection under Sect. 91 (3) (a) describes a construction in which the turns of the helix are convex, and the axial bore increases towards both ends. This subject-matter does not appear in the Specification as accepted.
Patent GB-1063700-A (GB)
Title: Method and apparatus for generating acoustic vibrations in flowing liquids
IPC: B01F11/02
Filed: 1963-12-19
Abstract: In a method of and apparatus for generating sonic or ultrasonic vibrations in a flowing fluid, the fluid flows through an orifice having a vibrating element such as a blade positioned wholly or partly upstream of it.  The blade may have a sharp, curved or flat trailing edge, or be perforated, and the relative position of the blade and the orifice may be adjustable (see Figs. 1-5, not shown). The blade may enter or project through the orifice (see Fig. 6, not shown).  The vibratory element may alternatively be an array of wires or a needle (see Fig. 12, not shown).  The orifice may consist of thin interleaved plates having arcuate edges providing an adjustable orifice; the plates vibrate and contribute to the vibrations in the fluid (see Figs. 13 and 14 not shown).  The vibratory element may be fixed at either or both ends, and there may be more than one vibratory element and/or orifice (see Figs. 16-18 not shown).  A hollow blade of streamline cross-section in the line of flow may be used and may have a heat-exchange fluid circulate through it (Fig. 20) or may have an orifice through which an additional fluid may be injected into the flow, (Fig. 19).  The apparatus may be used for suspending solid matter in liquids, making oil-in-water or water-in-oil emulsions, and defibering wood chips.
Patent GB-1441349-A (GB)
Title: Electrostatic printers
IPC: B41J2/41
Filed: 1974-08-12
Abstract: 1441349 Printing machines SIEMENS AG 12 Aug 1974 [14 Aug 1973] 35357/74 Heading G2H In an electrostatic printer of the kind in which an electrically charged latent image of characters to be printed is produced on an insulating surface of an intermediate carrier on which the latent image is then developed with toner particles and the toner image transferred therefrom on to paper where it is fixed, the intermediate carrier is provided with a photo-conductive surface which is discharged by light after the transfer of the toner image.
Patent GB-411896-A (GB)
Title: Improvements in oil fuel burners
IPC: F23D11/10
Filed: 1932-12-14
Abstract: 411,896. Liquid-fuel burners. DAVIES BROS. & CO., Ltd., and WARD, E. G., Crown Works, Cross Street North, Wolverhampton. Dec. 14, 1932, No. 35413. [Class 75 (i).] A liquid-fuel burner comprises a fuel chamber C and fuel tube c adjustable axially in an air chamber A, the air chamber having at its forward end an adjustable nozzle B formed with a substantially right-angled inturned lip b so as to leave an annular orifice E between the lip and the fuel tube which is cylindrical except at its rounded or chamfered forward end c<6>. When the air orifice E is behind the fuel orifice c<2> the fuel burns with a long flame, but as the fuel tube is drawn back until the fuel orifice is behind the lip b the flame is progressively shortened. The fuel tube is fitted with a regulating needle c<3> and is secured in position when adjusted by a set screw D. The air passing from a supply pipe a to the chamber A is regulated by a liner G formed with a port g4 and movable angularly over the reduced forward end of the fuel chamber C by means of a screw g. On loosening the screw D the fuel chamber and jet may be removed for cleaning.
Patent GB-393675-A (GB)
Title: Improvements in or connected with means for securing a pin, core or the like within a socket, cup or the like
IPC: H01B17/20
Filed: 1931-12-22
Abstract: 393,675. Securing insulators to supports. PRESTON, G. W., 39, Ipswich Road, Stowmarket, Suffolk. Dec. 22, 1931, No. 35468. [Class 36.] A screw-threaded insulator pin is resiliently mounted within and locked against withdrawal from a correspondingly threaded socket of an insulator by a helical spring coil which is disposed between the screw-threaded surfaces and which has one end secured to either the pin or the socket. Fig. 1 shows a threaded and tapered pin 2 resiliently mounted and locked within a threaded insulator socket 7 by a spring coil 4 which has an inwardly turned upper end 5 engaged in a slot 6 in the end of the pin. To increase the resiliency of the mounting, the coil- 4 may be formed with an easily deformable cross section, such as that shown in Fig. 4, whilst to increase the frictional resistance to the unscrewing of the insulator 1 rom the pin, the coil 4 or the threads in the socket 7, or both, may be roughened and the free end of the coil may be so shaped as to increase its frictional engagement with the socket. The threaded surfaces of the pin and socket may be metallized and the spaces between the assembled parts filled with grease, bitumen or other waterproofing material. To remove the insulator from the pin, the free end of the coil 4 must be turned in a direction tending to bind the coil to the pin, and for this purpose the free end of the coil may project below the socket 7. To vary the locking effect of the coil 4, an adjustable stop may be provided on the pin 2 to limit the movement of the free end of the coil. In modified constructions, the end 5 of the coil is attached to the socket 7 and the threads on the pin and socket are discontinuous.
Patent GB-941211-A (GB)
Title: Improvements in coin selecting and testing mechanism
Inventor: ROUNSIVELL WILFRED ARTHUR
Filed: 1961-10-02
Abstract: 941,211. Coin testing. FISHER & LUDLOW Ltd. Oct. 2,1962 [Oct. 2, 1961], No. 35514/61. Heading G4V. Polygonal coins are tested for length of edge, diameter, and thickness, and are distinguished from circular coins of a similar diameter. Coins of ferrous material are arrested by a magnet. The mechanism is designed to test the polygonal threepenny piece and is characterized by the provision of opposed parallel racks of teeth, studs, or rods, the spacing between which equals a polygonal edge and the distance between the racks being equal to the diameter of the inscribed circle of the polygon. The teeth of one rack are positioned to lie opposite the spaces between teeth of the other rack. One rack 17 is mounted on a base plate 11 and the other rack 20 is mounted on a clearing plate 13 hinged to the base plate. Plate 13 is shown open but the position of the rack 20 when the plate 13 is closed is shown in dotted outline. Each tooth of the rack 20 is placed opposite a trough in the rack 17. Coins roll on to an initial flat portion 21a of rack 17 to allow them to gain momentum and are then allowed to get in step with the rack 17 over a number of teeth before encountering the upper rack 20. Before coins reach the racks they are gauged for thickness by a gap, between the flat portion 21a of the rack 17 and the clearing plate 13, which allows thin coins to fall through. By inclining the mechanism so that coins rub against the clearing plate 13 they are gauged for overall diameter by means of a window 23 and a bent out tab 24 placed opposite the flat portion 21a of the rack 17. At the same time, a magnet 26 spaced from coins by a non- magnetic screen 27 on the plate 13, arrests spurious coins of ferrous material. Circular coins which have passed the preceding tests will have a diameter in excess of the diameter of the inscribed circle of a threepenny bit and will consequently jam between the racks 17 and 20. Polygonal coins of too large a diameter, or with the wrong number of sides, or with irregular sides, will also jam between the racks. Due to the forward inclination of the device, jammed coins are released by opening the clearing plate 13 to allow them to precipitate themselves into a container 16. The non-magnetic screen 27 allows coins held by magnet 26 to be dislodged as the clearing plate 13 opens.
Patent GB-908601-A (GB)
Title: Improvements in and relating to sieve drum driers
IPC: F26B13/16
Filed: 1959-10-20
Abstract: 908,601. Drying-apparatus. FLEISSNER G.m.b.H. Oct. 20, 1959 [Oct. 20, 1958], No. 35523/59. Class 34 (2). Apparatus for drying articles e.g. woollen articles as pullovers or the like, on sieve drum driers is characterized in that each article is applied to at least one stretching frame, form or the like corresponding to the shape of the article, and that each frame or form or the like with the article thereon is held by vacuum to the sieve drum. Articles 7, Fig. 7, e.g. of wool, are secured as by hooks on the nets of flexible or articulated frames 5, each frame having suction surfaces 11 along its edges so as to lie on the surface of the casing of sieve drums 1, 2, Fig. 2, under the vacuum exerted thereby. Spring-loaded guide surfaces 6 formed as angle irons may be provided to press the frames on the drums and the ineffective surface areas of the drums are screened by metal sheets 3. The frames are transferred from drum to drum by hollow members 4 having a suction effect therein, or by rollers or belts. Entrainment pieces e.g. bolts may be provided on the drum edges to engage slots in the frames to hold the frames in position on the drums, or suction surfaces e.g. cups may be provided on the underside of each frame.
Patent GB-506327-A (GB)
Title: Improvements in or relating to centrifugal fans or the like
IPC: F04D29/42
Filed: 1938-12-06
Abstract: 506,327. Centrifugal fans. AKTIEBOLAGET SVENSKA FLAKT FABRIKEN. Dec. 6, 1938, No. 35574. Convention date, Dec. 7, 1937. [Class 110 (i)] In centrifugal fans for use with air containing solid particles such as coal dust, the funnelshaped inlet guide 1, Fig. 1, provided to prevent undue wear on the further parts of the impeller blades 4 has at its widest part 6 different extensions in axial direction to distribute the wear more uniformly. The edge 6 may be shaped to form one or more helices, or may be arranged with sectors, Figs. 5, 6, each forming part of a helix and each sector may be provided with steps 7, 9 which may be grooved as at 10 to maintain the desired axial distribution. The radius of curvature of the edge of each sector may decrease with increase in the axial length. A plurality of guide members may be provided, each member covering a portion of the width of the blades. The guide member may be displaceable in axial direction. The parts of the sectors ending nearest the inlet may have a greater radial extension than the parts ending further away.
Patent GB-851396-A (GB)
Title: A method of producing l-lysine by fermentation
IPC: C12P13/04
Filed: 1958-11-05
Abstract: L-Lysine is prepared by aerobic fermentation of a culturing medium containing assimilable sources of carbon, nitrogen and minerals and maintained at a pH of between 5,1 and 8,5 with a nutritionally defective mutant of Micrococcus glutamicus requiring for its growth the following amino acid or combinations of amino acids:-(a) homoserine, (b) threonine and methionine, (c) threonine and cystothione, and (d) threonine and homocysterine. Specified mutants are Micrococcus glutamicus A.T.C.C. Nos. 13286 and 13287.  Carbon sources are provided by carbohydrates, such as glucose, sucrose, fructose, mannose, maltose, xylose, galactose, high test molasses, black-strap molasses and acid hydrolysed starch, and organic acids, such as fumaric, lactic, succinic and pyruvic acids.  Nitrogen sources are provided by peptone, NZ-amine (an enzymatic digest of casein), casein hydrolysates, soybean hydrolysates, silk worm pupa hydrolysates, meat extract, corn steep liquor, fish meal, urea and ammonium chloride, sulphate, phosphate and acetate.  The L-lysine may be isolated as the hydrochloride or dihydrochloride.  Specifications 820,267 and 820,268 are referred to.
Patent GB-1271249-A (GB)
Title: Improvements in or relating to apparatus for treating refuse
Inventor: GOTHARD SYDNEY AVERILL
IPC: B02C17/00
Filed: 1969-07-15
Abstract: 1,271,249. Tube mills; comminuting refuse. VICKERS Ltd. 8 July, 1970 [15 July, 1969], No. 35670/69. Heading B2A. [Also in Division C1] An apparatus for treating refuse comprises a drum substantially as described in British Specification 1,128,805, the inlet portion terminating in a frusto conical portion with inwardly directed annular lip 3, and containing baffles 4, 5 and 6 each arranged (on looking axially) to be diametrically opposed to its neighbour. Baffle 4 leans towards the inlet, may be cranked along its length with its free edge 9 cranked to form a rector shape. Baffle 5 leans away from the inlet and may be similarly cranked. Baffle 6 lies in a plane perpendicular to drum axis. The plane passing through freeend 11, and perpendicular to drum axis lies on or to the left or to the right (Fig. 1) of the points 7, and a plane passing through free end 13, likewise perpendicular, lies on or to the left (Fig. 1) of the point 10.
Patent GB-508044-A (GB)
Title: Improvements in or relating to window casements rotatable about two perpendicular edges
IPC: E05D15/52
Filed: 1937-12-24
Abstract: 508,044. Stays; hinges. DIESTELKAMP, F. Dec. 24, 1937, Nos. 35799 and 35800. Convention dates, Dec. 24, 1936 and Aug. 17, 1937. [Classes 65 (i) and 65 (ii)] [Also in Group X] A casement window in which the sash 2 is capable of rotation optionally about one of its vertical edges or about its'lower edge, is provided with a stay 16, for supporting the sash when it is swung about its lower edge, which is connected at its upper end by means of a horizontal pin 15 to a vertical pin 14 rotatably mounted in a socket 13 attached to the window frame, the lower end of the stay being provided with a pin 22 which, when the stay is vertical, engages a bearing member 23 on the window frame, in order that the stay may serve as a hinge. As shown in Fig. 3, the pin 22 engages a slot 33 in a spring-load bolt 26, the lower end of the pin and the upper end of the bolt being bevelled to facilitate the interengagement of the two members. According to a modification, the pin 22 may be provided on the bolt 26 and the socket 33 in the member 21 secured to the lower end of the stay. The upper end of the stay may be connected to the window frame by means of a ball and socket joint, the socket of which is formed at the end of a screw which is secured in the frame. The stay is of hollow formation, a spherical or cylindrical block 17 attached to the edge of the sash being capable of sliding movement along the stay when the sash is swung about its lower edge. The lower corner hinge is provided with vertical and horizontal pins 9, 10, respectively, to permit the necessary rotary movements of the sash about its two perpendicular edges. The hinge at the lower edge of the sash comprises two sockets 3, 4, respectively attached to the fixed and sash frames, and engageable by a pin 5 which may be withdrawn from the socket 4 when the sash is rotated about its vertical edge.
Patent GB-388166-A (GB)
Title: An appliance for use in correcting faults in golf
IPC: A63B69/36
Filed: 1931-12-28
Abstract: 388,166. Golf-practising appliances. COMPSTON, A., Coombe Hill Golf Club, Kingston Hill, Surrey. Dec. 28, 1931, No. 35829. [Class 132 (ii).] A golf-practising appliance comprises three connected arms, the first arm 1 supporting a tee 2 for the ball and being pivoted to one end of the second arm 3, while the third arm 4 extends upwardly from the opposite end of the second arm and presents a surface which the player must avoid in swinging his club. The arms are formed of rubber or other soft material to prevent damage to the club and are anchored to the ground by spikes 5, 6. The central arm 3 may be provided with a series of spaced holes to enable the position of the upright arm to be varied relatively to the tee.